1366 - Incorrect integer value: '' for column `mapshopatlogis`.`whos_online`.`customer_id` at row 1

insert into whos_online (customer_id, full_name, session_id, ip_address, time_entry, time_last_click, last_page_url) values ('', 'Guest', '451a8ea54021568721a8fa198399f71c', '3.139.70.131', '1713978902', '1713978902', '/product_info.php/language/en/info/p439_Relief-Map-Configurator.html')

[XT SQL Error]